Bug Summary

File:_build/../cdk-pixbuf/cdk-pixbuf-loader.c
Warning:line 422, column 20
Access to field 'module_name' results in a dereference of a null pointer (loaded from field 'image_module')

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -O2 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name cdk-pixbuf-loader.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=none -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/rootdir/_build -fcoverage-compilation-dir=/rootdir/_build -resource-dir /usr/lib/llvm-21/lib/clang/21 -I cdk-pixbuf/libcdk_pixbuf-2.0.so.0.4501.0.p -I cdk-pixbuf -I ../cdk-pixbuf -I . -I .. -I cdk-pixbuf/pixops -I ../cdk-pixbuf/pixops -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/sysprof-6 -I /usr/include/libmount -I /usr/include/blkid -D _FILE_OFFSET_BITS=64 -D _POSIX_C_SOURCE=200809L -D _DEFAULT_SOURCE -D _XOPEN_SOURCE=700 -D HAVE_CONFIG_H=1 -D G_LOG_STRUCTURED=1 -D G_LOG_DOMAIN="CdkPixbuf" -D CDK_PIXBUF_COMPILATION -D CDK_PIXBUF_PREFIX="/usr/local" -D CDK_PIXBUF_LOCALEDIR="/usr/local/share/locale" -D CDK_PIXBUF_LIBDIR="/usr/local/lib/x86_64-linux-gnu" -D CDK_PIXBUF_BINARY_VERSION="2.10.0" -D CDK_PIXBUF_ENABLE_BACKEND -D PIXBUF_LIBDIR="/usr/local/lib/x86_64-linux-gnu/cdk-pixbuf-2.0/2.10.0/loaders" -D BUILT_MODULES_DIR="/rootdir/_build/cdk-pixbuf" -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/15/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wno-int-conversion -Wno-uninitialized -Wno-discarded-qualifiers -std=gnu99 -ferror-limit 19 -fvisibility=hidden -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fcolor-diagnostics -vectorize-loops -vectorize-slp -analyzer-checker deadcode.DeadStores -analyzer-checker security.ArrayBound -analyzer-checker unix.cstring.NotNullTerminated -analyzer-checker alpha.deadcode.UnreachableCode -analyzer-checker alpha.core.CastToStruct -analyzer-checker alpha.security.ReturnPtrRange -analyzer-checker alpha.unix.SimpleStream -analyzer-checker alpha.unix.cstring.BufferOverlap -analyzer-checker alpha.unix.cstring.OutOfBounds -analyzer-checker alpha.core.FixedAddr -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /rootdir/html-report/2026-08-29-084133-8035-1 -x c ../cdk-pixbuf/cdk-pixbuf-loader.c
1/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
2/* CdkPixbuf library - Progressive loader object
3 *
4 * Copyright (C) 1999 The Free Software Foundation
5 *
6 * Authors: Mark Crichton <crichton@gimp.org>
7 * Miguel de Icaza <miguel@gnu.org>
8 * Federico Mena-Quintero <federico@gimp.org>
9 * Jonathan Blandford <jrb@redhat.com>
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25#include "config.h"
26#include <string.h>
27
28#include "cdk-pixbuf-private.h"
29#include "cdk-pixbuf-animation.h"
30#include "cdk-pixbuf-scaled-anim.h"
31#include "cdk-pixbuf-loader.h"
32#include "cdk-pixbuf-marshal.h"
33
34/**
35 * CdkPixbufLoader:
36 *
37 * Incremental image loader.
38 *
39 * `CdkPixbufLoader` provides a way for applications to drive the
40 * process of loading an image, by letting them send the image data
41 * directly to the loader instead of having the loader read the data
42 * from a file. Applications can use this functionality instead of
43 * `cdk_pixbuf_new_from_file()` or `cdk_pixbuf_animation_new_from_file()`
44 * when they need to parse image data in small chunks. For example,
45 * it should be used when reading an image from a (potentially) slow
46 * network connection, or when loading an extremely large file.
47 *
48 * To use `CdkPixbufLoader` to load an image, create a new instance,
49 * and call [method@CdkPixbuf.PixbufLoader.write] to send the data
50 * to it. When done, [method@CdkPixbuf.PixbufLoader.close] should be
51 * called to end the stream and finalize everything.
52 *
53 * The loader will emit three important signals throughout the process:
54 *
55 * - [signal@CdkPixbuf.PixbufLoader::size-prepared] will be emitted as
56 * soon as the image has enough information to determine the size of
57 * the image to be used. If you want to scale the image while loading
58 * it, you can call [method@CdkPixbuf.PixbufLoader.set_size] in
59 * response to this signal.
60 * - [signal@CdkPixbuf.PixbufLoader::area-prepared] will be emitted as
61 * soon as the pixbuf of the desired has been allocated. You can obtain
62 * the `CdkPixbuf` instance by calling [method@CdkPixbuf.PixbufLoader.get_pixbuf].
63 * If you want to use it, simply acquire a reference to it. You can
64 * also call `cdk_pixbuf_loader_get_pixbuf()` later to get the same
65 * pixbuf.
66 * - [signal@CdkPixbuf.PixbufLoader::area-updated] will be emitted every
67 * time a region is updated. This way you can update a partially
68 * completed image. Note that you do not know anything about the
69 * completeness of an image from the updated area. For example, in an
70 * interlaced image you will need to make several passes before the
71 * image is done loading.
72 *
73 * ## Loading an animation
74 *
75 * Loading an animation is almost as easy as loading an image. Once the
76 * first [signal@CdkPixbuf.PixbufLoader::area-prepared] signal has been
77 * emitted, you can call [method@CdkPixbuf.PixbufLoader.get_animation] to
78 * get the [class@CdkPixbuf.PixbufAnimation] instance, and then call
79 * and [method@CdkPixbuf.PixbufAnimation.get_iter] to get a
80 * [class@CdkPixbuf.PixbufAnimationIter] to retrieve the pixbuf for the
81 * desired time stamp.
82 */
83
84
85enum {
86 SIZE_PREPARED,
87 AREA_PREPARED,
88 AREA_UPDATED,
89 CLOSED,
90 LAST_SIGNAL
91};
92
93
94static void cdk_pixbuf_loader_finalize (GObject *loader);
95
96static guint pixbuf_loader_signals[LAST_SIGNAL] = { 0 };
97
98/* Internal data */
99
100typedef struct
101{
102 CdkPixbufAnimation *animation;
103 gboolean closed;
104 guchar header_buf[SNIFF_BUFFER_SIZE4096];
105 gint header_buf_offset;
106 CdkPixbufModule *image_module;
107 gpointer context;
108 gint original_width;
109 gint original_height;
110 gint width;
111 gint height;
112 gboolean size_fixed;
113 gboolean needs_scale;
114 gchar *filename;
115} CdkPixbufLoaderPrivate;
116
117G_DEFINE_TYPE (CdkPixbufLoader, cdk_pixbuf_loader, G_TYPE_OBJECT)static void cdk_pixbuf_loader_init (CdkPixbufLoader *self); static
void cdk_pixbuf_loader_class_init (CdkPixbufLoaderClass *klass
); static GType cdk_pixbuf_loader_get_type_once (void); static
gpointer cdk_pixbuf_loader_parent_class = ((void*)0); static
gint CdkPixbufLoader_private_offset; static void cdk_pixbuf_loader_class_intern_init
(gpointer klass) { cdk_pixbuf_loader_parent_class = g_type_class_peek_parent
(klass); if (CdkPixbufLoader_private_offset != 0) g_type_class_adjust_private_offset
(klass, &CdkPixbufLoader_private_offset); cdk_pixbuf_loader_class_init
((CdkPixbufLoaderClass*) klass); } __attribute__ ((__unused__
)) static inline gpointer cdk_pixbuf_loader_get_instance_private
(CdkPixbufLoader *self) { return (((gpointer) ((guint8*) (self
) + (glong) (CdkPixbufLoader_private_offset)))); } GType cdk_pixbuf_loader_get_type
(void) { static GType static_g_define_type_id = 0; if ((__extension__
({ _Static_assert (sizeof *(&static_g_define_type_id) ==
sizeof (gpointer), "Expression evaluates to false"); (void) (
0 ? (gpointer) * (&static_g_define_type_id) : ((void*)0))
; (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id
) == sizeof (gpointer), "Expression evaluates to false"); __typeof__
(*(&static_g_define_type_id)) gapg_temp_newval; __typeof__
((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id
); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5)
; gapg_temp_newval; })) && g_once_init_enter_pointer (
&static_g_define_type_id)); })) ) { GType g_define_type_id
= cdk_pixbuf_loader_get_type_once (); (__extension__ ({ _Static_assert
(sizeof *(&static_g_define_type_id) == sizeof (gpointer)
, "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id
) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer
((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id
)); })) ; } return static_g_define_type_id; } __attribute__ (
(__noinline__)) static GType cdk_pixbuf_loader_get_type_once (
void) { GType g_define_type_id = g_type_register_static_simple
(((GType) ((20) << (2))), g_intern_static_string ("CdkPixbufLoader"
), sizeof (CdkPixbufLoaderClass), (GClassInitFunc)(void (*)(void
)) cdk_pixbuf_loader_class_intern_init, sizeof (CdkPixbufLoader
), (GInstanceInitFunc)(void (*)(void)) cdk_pixbuf_loader_init
, (GTypeFlags) 0); { {{};} } return g_define_type_id; }
118
119
120static void
121cdk_pixbuf_loader_class_init (CdkPixbufLoaderClass *class)
122{
123 GObjectClass *object_class;
124
125 object_class = (GObjectClass *) class;
126
127 object_class->finalize = cdk_pixbuf_loader_finalize;
128
129 /**
130 * CdkPixbufLoader::size-prepared:
131 * @loader: the object which received the signal.
132 * @width: the original width of the image
133 * @height: the original height of the image
134 *
135 * This signal is emitted when the pixbuf loader has been fed the
136 * initial amount of data that is required to figure out the size
137 * of the image that it will create.
138 *
139 * Applications can call cdk_pixbuf_loader_set_size() in response
140 * to this signal to set the desired size to which the image
141 * should be scaled.
142 */
143 pixbuf_loader_signals[SIZE_PREPARED] =
144 g_signal_new ("size-prepared",
145 G_TYPE_FROM_CLASS (object_class)(((GTypeClass*) (object_class))->g_type),
146 G_SIGNAL_RUN_LAST,
147 G_STRUCT_OFFSET (CdkPixbufLoaderClass, size_prepared)((glong) __builtin_offsetof(CdkPixbufLoaderClass, size_prepared
)),
148 NULL((void*)0), NULL((void*)0),
149 _cdk_pixbuf_marshal_VOID__INT_INT,
150 G_TYPE_NONE((GType) ((1) << (2))), 2,
151 G_TYPE_INT((GType) ((6) << (2))),
152 G_TYPE_INT((GType) ((6) << (2))));
153
154 /**
155 * CdkPixbufLoader::area-prepared:
156 * @loader: the object which received the signal.
157 *
158 * This signal is emitted when the pixbuf loader has allocated the
159 * pixbuf in the desired size.
160 *
161 * After this signal is emitted, applications can call
162 * cdk_pixbuf_loader_get_pixbuf() to fetch the partially-loaded
163 * pixbuf.
164 */
165 pixbuf_loader_signals[AREA_PREPARED] =
166 g_signal_new ("area-prepared",
167 G_TYPE_FROM_CLASS (object_class)(((GTypeClass*) (object_class))->g_type),
168 G_SIGNAL_RUN_LAST,
169 G_STRUCT_OFFSET (CdkPixbufLoaderClass, area_prepared)((glong) __builtin_offsetof(CdkPixbufLoaderClass, area_prepared
)),
170 NULL((void*)0), NULL((void*)0),
171 _cdk_pixbuf_marshal_VOID__VOIDg_cclosure_marshal_VOID__VOID,
172 G_TYPE_NONE((GType) ((1) << (2))), 0);
173
174 /**
175 * CdkPixbufLoader::area-updated:
176 * @loader: the object which received the signal.
177 * @x: X offset of upper-left corner of the updated area.
178 * @y: Y offset of upper-left corner of the updated area.
179 * @width: Width of updated area.
180 * @height: Height of updated area.
181 *
182 * This signal is emitted when a significant area of the image being
183 * loaded has been updated.
184 *
185 * Normally it means that a complete scanline has been read in, but
186 * it could be a different area as well.
187 *
188 * Applications can use this signal to know when to repaint
189 * areas of an image that is being loaded.
190 */
191 pixbuf_loader_signals[AREA_UPDATED] =
192 g_signal_new ("area-updated",
193 G_TYPE_FROM_CLASS (object_class)(((GTypeClass*) (object_class))->g_type),
194 G_SIGNAL_RUN_LAST,
195 G_STRUCT_OFFSET (CdkPixbufLoaderClass, area_updated)((glong) __builtin_offsetof(CdkPixbufLoaderClass, area_updated
)),
196 NULL((void*)0), NULL((void*)0),
197 _cdk_pixbuf_marshal_VOID__INT_INT_INT_INT,
198 G_TYPE_NONE((GType) ((1) << (2))), 4,
199 G_TYPE_INT((GType) ((6) << (2))),
200 G_TYPE_INT((GType) ((6) << (2))),
201 G_TYPE_INT((GType) ((6) << (2))),
202 G_TYPE_INT((GType) ((6) << (2))));
203
204 /**
205 * CdkPixbufLoader::closed:
206 * @loader: the object which received the signal.
207 *
208 * This signal is emitted when cdk_pixbuf_loader_close() is called.
209 *
210 * It can be used by different parts of an application to receive
211 * notification when an image loader is closed by the code that
212 * drives it.
213 */
214 pixbuf_loader_signals[CLOSED] =
215 g_signal_new ("closed",
216 G_TYPE_FROM_CLASS (object_class)(((GTypeClass*) (object_class))->g_type),
217 G_SIGNAL_RUN_LAST,
218 G_STRUCT_OFFSET (CdkPixbufLoaderClass, closed)((glong) __builtin_offsetof(CdkPixbufLoaderClass, closed)),
219 NULL((void*)0), NULL((void*)0),
220 _cdk_pixbuf_marshal_VOID__VOIDg_cclosure_marshal_VOID__VOID,
221 G_TYPE_NONE((GType) ((1) << (2))), 0);
222}
223
224static void
225cdk_pixbuf_loader_init (CdkPixbufLoader *loader)
226{
227 CdkPixbufLoaderPrivate *priv;
228
229 priv = g_new0 (CdkPixbufLoaderPrivate, 1)(CdkPixbufLoaderPrivate *) (__extension__ ({ gsize __n = (gsize
) (1); gsize __s = sizeof (CdkPixbufLoaderPrivate); gpointer __p
; if (__s == 1) __p = g_malloc0 (__n); else if (__builtin_constant_p
(__n) && (__s == 0 || __n <= (9223372036854775807L
*2UL+1UL) / __s)) __p = g_malloc0 (__n * __s); else __p = g_malloc0_n
(__n, __s); __p; }));
230 priv->original_width = -1;
231 priv->original_height = -1;
232 priv->width = -1;
233 priv->height = -1;
234
235 loader->priv = priv;
236}
237
238static void
239cdk_pixbuf_loader_finalize (GObject *object)
240{
241 CdkPixbufLoader *loader;
242 CdkPixbufLoaderPrivate *priv = NULL((void*)0);
243
244 loader = CDK_PIXBUF_LOADER (object)((((CdkPixbufLoader*) (void *) ((object)))));
245 priv = loader->priv;
246
247 if (!priv->closed) {
248 g_warning ("CdkPixbufLoader finalized without calling cdk_pixbuf_loader_close() - this is not allowed. You must explicitly end the data stream to the loader before dropping the last reference.");
249 }
250 if (priv->animation)
251 g_object_unref (priv->animation);
252
253 g_free (priv->filename)(__builtin_object_size ((priv->filename), 0) != ((size_t) -
1)) ? g_free_sized (priv->filename, __builtin_object_size
((priv->filename), 0)) : (g_free) (priv->filename);
254
255 g_free (priv)(__builtin_object_size ((priv), 0) != ((size_t) - 1)) ? g_free_sized
(priv, __builtin_object_size ((priv), 0)) : (g_free) (priv);
256
257 G_OBJECT_CLASS (cdk_pixbuf_loader_parent_class)((((GObjectClass*) (void *) ((cdk_pixbuf_loader_parent_class)
))))->finalize (object);
258}
259
260/**
261 * cdk_pixbuf_loader_set_size:
262 * @loader: A pixbuf loader.
263 * @width: The desired width of the image being loaded.
264 * @height: The desired height of the image being loaded.
265 *
266 * Causes the image to be scaled while it is loaded.
267 *
268 * The desired image size can be determined relative to the original
269 * size of the image by calling cdk_pixbuf_loader_set_size() from a
270 * signal handler for the ::size-prepared signal.
271 *
272 * Attempts to set the desired image size are ignored after the
273 * emission of the ::size-prepared signal.
274 *
275 * Since: 2.2
276 */
277void
278cdk_pixbuf_loader_set_size (CdkPixbufLoader *loader,
279 gint width,
280 gint height)
281{
282 CdkPixbufLoaderPrivate *priv;
283
284 g_return_if_fail (CDK_IS_PIXBUF_LOADER (loader))do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_27
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_27 = 1; _g_boolean_var_27; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return; } } while (0);
285 g_return_if_fail (width >= 0 && height >= 0)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_28
= 0; if (width >= 0 && height >= 0) _g_boolean_var_28
= 1; _g_boolean_var_28; }), 1))) { } else { g_return_if_fail_warning
("CdkPixbuf", ((const char*) (__func__)), "width >= 0 && height >= 0"
); return; } } while (0);
286
287 priv = CDK_PIXBUF_LOADER (loader)((((CdkPixbufLoader*) (void *) ((loader)))))->priv;
288
289 if (!priv->size_fixed)
290 {
291 priv->width = width;
292 priv->height = height;
293 }
294}
295
296static void
297cdk_pixbuf_loader_size_func (gint *width, gint *height, gpointer loader)
298{
299 CdkPixbufLoaderPrivate *priv = CDK_PIXBUF_LOADER (loader)((((CdkPixbufLoader*) (void *) ((loader)))))->priv;
300
301 priv->original_width = *width;
302 priv->original_height = *height;
303
304 /* allow calling cdk_pixbuf_loader_set_size() before the signal */
305 if (priv->width == -1 && priv->height == -1)
306 {
307 priv->width = *width;
308 priv->height = *height;
309 }
310
311 g_signal_emit (loader, pixbuf_loader_signals[SIZE_PREPARED], 0, *width, *height);
312 priv->size_fixed = TRUE(!(0));
313
314 *width = priv->width;
315 *height = priv->height;
316}
317
318static void
319cdk_pixbuf_loader_prepare (CdkPixbuf *pixbuf,
320 CdkPixbufAnimation *anim,
321 gpointer loader)
322{
323 CdkPixbufLoaderPrivate *priv = CDK_PIXBUF_LOADER (loader)((((CdkPixbufLoader*) (void *) ((loader)))))->priv;
324 gint width, height;
325 g_return_if_fail (pixbuf != NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_29
= 0; if (pixbuf != ((void*)0)) _g_boolean_var_29 = 1; _g_boolean_var_29
; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", (
(const char*) (__func__)), "pixbuf != NULL"); return; } } while
(0);
326
327G_GNUC_BEGIN_IGNORE_DEPRECATIONSclang diagnostic push clang diagnostic ignored "-Wdeprecated-declarations"
328
329 width = anim ? cdk_pixbuf_animation_get_width (anim) :
330 cdk_pixbuf_get_width (pixbuf);
331 height = anim ? cdk_pixbuf_animation_get_height (anim) :
332 cdk_pixbuf_get_height (pixbuf);
333
334G_GNUC_END_IGNORE_DEPRECATIONSclang diagnostic pop
335
336 if (!priv->size_fixed)
337 {
338 gint w = width;
339 gint h = height;
340 /* Defend against lazy loaders which don't call size_func */
341 cdk_pixbuf_loader_size_func (&w, &h, loader);
342 }
343
344 priv->needs_scale = FALSE(0);
345 if (priv->width > 0 && priv->height > 0 &&
346 (priv->width != width || priv->height != height))
347 priv->needs_scale = TRUE(!(0));
348
349 if (anim)
350 g_object_ref (anim)((__typeof__ (anim)) (g_object_ref) (anim));
351 else {
352 if (priv->original_width > 0) {
353 char *original_width_str = NULL((void*)0);
354
355 original_width_str = g_strdup_printf ("%d", priv->original_width);
356 cdk_pixbuf_set_option (pixbuf, "original-width", original_width_str);
357 g_free (original_width_str)(__builtin_object_size ((original_width_str), 0) != ((size_t)
- 1)) ? g_free_sized (original_width_str, __builtin_object_size
((original_width_str), 0)) : (g_free) (original_width_str);
358 }
359
360 if (priv->original_height > 0) {
361 char *original_height_str = NULL((void*)0);
362
363 original_height_str = g_strdup_printf ("%d", priv->original_height);
364 cdk_pixbuf_set_option (pixbuf, "original-height", original_height_str);
365 g_free (original_height_str)(__builtin_object_size ((original_height_str), 0) != ((size_t
) - 1)) ? g_free_sized (original_height_str, __builtin_object_size
((original_height_str), 0)) : (g_free) (original_height_str);
366 }
367
368G_GNUC_BEGIN_IGNORE_DEPRECATIONSclang diagnostic push clang diagnostic ignored "-Wdeprecated-declarations"
369 anim = cdk_pixbuf_non_anim_new (pixbuf);
370G_GNUC_END_IGNORE_DEPRECATIONSclang diagnostic pop
371 }
372
373G_GNUC_BEGIN_IGNORE_DEPRECATIONSclang diagnostic push clang diagnostic ignored "-Wdeprecated-declarations"
374 if (priv->needs_scale && width != 0 && height != 0) {
375 priv->animation = CDK_PIXBUF_ANIMATION (_cdk_pixbuf_scaled_anim_new (anim,((((CdkPixbufAnimation*) (void *) ((_cdk_pixbuf_scaled_anim_new
(anim, (double) priv->width / width, (double) priv->height
/ height, 1.0))))))
376 (double) priv->width / width,((((CdkPixbufAnimation*) (void *) ((_cdk_pixbuf_scaled_anim_new
(anim, (double) priv->width / width, (double) priv->height
/ height, 1.0))))))
377 (double) priv->height / height,((((CdkPixbufAnimation*) (void *) ((_cdk_pixbuf_scaled_anim_new
(anim, (double) priv->width / width, (double) priv->height
/ height, 1.0))))))
378 1.0))((((CdkPixbufAnimation*) (void *) ((_cdk_pixbuf_scaled_anim_new
(anim, (double) priv->width / width, (double) priv->height
/ height, 1.0))))));
379 g_object_unref (anim);
380 }
381 else
382 priv->animation = anim;
383G_GNUC_END_IGNORE_DEPRECATIONSclang diagnostic pop
384
385 if (!priv->needs_scale)
386 g_signal_emit (loader, pixbuf_loader_signals[AREA_PREPARED], 0);
387}
388
389static void
390cdk_pixbuf_loader_update (CdkPixbuf *pixbuf,
391 gint x,
392 gint y,
393 gint width,
394 gint height,
395 gpointer loader)
396{
397 CdkPixbufLoaderPrivate *priv = CDK_PIXBUF_LOADER (loader)((((CdkPixbufLoader*) (void *) ((loader)))))->priv;
398
399G_GNUC_BEGIN_IGNORE_DEPRECATIONSclang diagnostic push clang diagnostic ignored "-Wdeprecated-declarations"
400 if (!priv->needs_scale)
401 g_signal_emit (loader,
402 pixbuf_loader_signals[AREA_UPDATED],
403 0,
404 x, y,
405 /* sanity check in here. Defend against an errant loader */
406 MIN (width, cdk_pixbuf_animation_get_width (priv->animation))(((width) < (cdk_pixbuf_animation_get_width (priv->animation
))) ? (width) : (cdk_pixbuf_animation_get_width (priv->animation
))),
407 MIN (height, cdk_pixbuf_animation_get_height (priv->animation))(((height) < (cdk_pixbuf_animation_get_height (priv->animation
))) ? (height) : (cdk_pixbuf_animation_get_height (priv->animation
))));
408G_GNUC_END_IGNORE_DEPRECATIONSclang diagnostic pop
409}
410
411/* Defense against broken loaders; DO NOT take this as a GError example! */
412static void
413cdk_pixbuf_loader_ensure_error (CdkPixbufLoader *loader,
414 GError **error)
415{
416 CdkPixbufLoaderPrivate *priv = loader->priv;
417
418 if (error
40.1
'error' is not equal to NULL
 == NULL((void*)0) || *error != NULL((void*)0))
41
←
Taking false branch
→
419 return;
420
421 g_warning ("Bug! loader '%s' didn't set an error on failure",
422 priv->image_module->module_name);
42
←
Access to field 'module_name' results in a dereference of a null pointer (loaded from field 'image_module')
423 g_set_error (error,
424 CDK_PIXBUF_ERRORcdk_pixbuf_error_quark (),
425 CDK_PIXBUF_ERROR_FAILED,
426 _("Internal error: Image loader module “%s” failed to"((char *) g_dgettext ("cdk-pixbuf", "Internal error: Image loader module “%s” failed to"
" complete an operation, but didn’t give a reason for" " the failure"
))
427 " complete an operation, but didn’t give a reason for"((char *) g_dgettext ("cdk-pixbuf", "Internal error: Image loader module “%s” failed to"
" complete an operation, but didn’t give a reason for" " the failure"
))
428 " the failure")((char *) g_dgettext ("cdk-pixbuf", "Internal error: Image loader module “%s” failed to"
" complete an operation, but didn’t give a reason for" " the failure"
)),
429 priv->image_module->module_name);
430}
431
432static gint
433cdk_pixbuf_loader_load_module (CdkPixbufLoader *loader,
434 const char *image_type,
435 GError **error)
436{
437 CdkPixbufLoaderPrivate *priv = loader->priv;
438
439 if (image_type)
440 {
441 priv->image_module = _cdk_pixbuf_get_named_module (image_type,
442 error);
443 }
444 else
445 {
446 priv->image_module = _cdk_pixbuf_get_module (priv->header_buf,
447 priv->header_buf_offset,
448 priv->filename,
449 error);
450 }
451
452 if (priv->image_module == NULL((void*)0))
453 return 0;
454
455 if (!_cdk_pixbuf_load_module (priv->image_module, error))
456 return 0;
457
458 if (priv->image_module->module == NULL((void*)0))
459 return 0;
460
461 if ((priv->image_module->begin_load == NULL((void*)0)) ||
462 (priv->image_module->stop_load == NULL((void*)0)) ||
463 (priv->image_module->load_increment == NULL((void*)0)))
464 {
465 g_set_error (error,
466 CDK_PIXBUF_ERRORcdk_pixbuf_error_quark (),
467 CDK_PIXBUF_ERROR_UNSUPPORTED_OPERATION,
468 _("Incremental loading of image type “%s” is not supported")((char *) g_dgettext ("cdk-pixbuf", "Incremental loading of image type “%s” is not supported"
)),
469 priv->image_module->module_name);
470
471 return 0;
472 }
473
474 priv->context = priv->image_module->begin_load (cdk_pixbuf_loader_size_func,
475 cdk_pixbuf_loader_prepare,
476 cdk_pixbuf_loader_update,
477 loader,
478 error);
479
480 if (priv->context == NULL((void*)0))
481 {
482 cdk_pixbuf_loader_ensure_error (loader, error);
483 return 0;
484 }
485
486 if (priv->header_buf_offset
487 && priv->image_module->load_increment (priv->context, priv->header_buf, priv->header_buf_offset, error))
488 return priv->header_buf_offset;
489
490 return 0;
491}
492
493static int
494cdk_pixbuf_loader_eat_header_write (CdkPixbufLoader *loader,
495 const guchar *buf,
496 gsize count,
497 GError **error)
498{
499 gint n_bytes;
500 CdkPixbufLoaderPrivate *priv = loader->priv;
501
502 n_bytes = MIN(SNIFF_BUFFER_SIZE - priv->header_buf_offset, count)(((4096 - priv->header_buf_offset) < (count)) ? (4096 -
priv->header_buf_offset) : (count));
503 memcpy (priv->header_buf + priv->header_buf_offset, buf, n_bytes);
504
505 priv->header_buf_offset += n_bytes;
506
507 if (priv->header_buf_offset >= SNIFF_BUFFER_SIZE4096)
508 {
509 if (cdk_pixbuf_loader_load_module (loader, NULL((void*)0), error) == 0)
510 return 0;
511 }
512
513 return n_bytes;
514}
515
516/**
517 * cdk_pixbuf_loader_write:
518 * @loader: A pixbuf loader.
519 * @buf: (array length=count): Pointer to image data.
520 * @count: Length of the @buf buffer in bytes.
521 * @error: return location for errors
522 *
523 * Parses the next `count` bytes in the given image buffer.
524 *
525 * Return value: `TRUE` if the write was successful, or
526 * `FALSE` if the loader cannot parse the buffer
527 **/
528gboolean
529cdk_pixbuf_loader_write (CdkPixbufLoader *loader,
530 const guchar *buf,
531 gsize count,
532 GError **error)
533{
534 CdkPixbufLoaderPrivate *priv;
535
536 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_30
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_30 = 1; _g_boolean_var_30; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return ((0)); } } while
(0);
18
←
Taking false branch
→
19
←
Assuming the condition is true
→
20
←
Taking true branch
→
21
←
Taking true branch
→
22
←
Loop condition is false. Exiting loop
→
537
538 g_return_val_if_fail (buf != NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_31
= 0; if (buf != ((void*)0)) _g_boolean_var_31 = 1; _g_boolean_var_31
; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", (
(const char*) (__func__)), "buf != NULL"); return ((0)); } } while
(0);
23
←
Assuming 'buf' is not equal to null
→
24
←
Taking true branch
→
25
←
Taking true branch
→
26
←
Loop condition is false. Exiting loop
→
539 g_return_val_if_fail (error == NULL || *error == NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_32
= 0; if (error == ((void*)0) || *error == ((void*)0)) _g_boolean_var_32
= 1; _g_boolean_var_32; }), 1))) { } else { g_return_if_fail_warning
("CdkPixbuf", ((const char*) (__func__)), "error == NULL || *error == NULL"
); return ((0)); } } while (0);
27
←
Taking true branch
→
28
←
Taking true branch
→
29
←
Loop condition is false. Exiting loop
→
540
541 priv = loader->priv;
542
543 /* we expect it's not to be closed */
544 g_return_val_if_fail (priv->closed == FALSE, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_33
= 0; if (priv->closed == (0)) _g_boolean_var_33 = 1; _g_boolean_var_33
; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", (
(const char*) (__func__)), "priv->closed == FALSE"); return
((0)); } } while (0);
30
←
Assuming field 'closed' is equal to 0
→
31
←
Taking true branch
→
32
←
Taking true branch
→
545
546 if (count > 0 && priv->image_module == NULL((void*)0))
33
←
Loop condition is false. Exiting loop
→
34
←
Assuming 'count' is > 0
→
35
←
Assuming field 'image_module' is equal to NULL
→
36
←
Taking true branch
→
547 {
548 gint eaten;
549
550 eaten = cdk_pixbuf_loader_eat_header_write (loader, buf, count, error);
551 if (eaten <= 0)
37
←
Assuming 'eaten' is <= 0
→
38
←
Taking true branch
→
552 goto fail;
39
←
Control jumps to line 571
→
553
554 count -= eaten;
555 buf += eaten;
556 }
557
558 /* By this point, we expect the image_module to have been loaded. */
559 g_assert (count == 0 || priv->image_module != NULL)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_34
= 0; if (count == 0 || priv->image_module != ((void*)0)) _g_boolean_var_34
= 1; _g_boolean_var_34; }), 1)) ; else g_assertion_message_expr
("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf-loader.c", 559, ((const
char*) (__func__)), "count == 0 || priv->image_module != NULL"
); } while (0);
560
561 if (count > 0 && priv->image_module->load_increment != NULL((void*)0))
562 {
563 if (!priv->image_module->load_increment (priv->context, buf, count,
564 error))
565 goto fail;
566 }
567
568 return TRUE(!(0));
569
570 fail:
571 cdk_pixbuf_loader_ensure_error (loader, error);
40
←
Calling 'cdk_pixbuf_loader_ensure_error'
→
572 cdk_pixbuf_loader_close (loader, NULL((void*)0));
573
574 return FALSE(0);
575}
576
577/**
578 * cdk_pixbuf_loader_write_bytes:
579 * @loader: A pixbuf loader.
580 * @buffer: The image data as a `GBytes` buffer.
581 * @error: return location for errors
582 *
583 * Parses the next contents of the given image buffer.
584 *
585 * Return value: `TRUE` if the write was successful, or `FALSE` if
586 * the loader cannot parse the buffer
587 *
588 * Since: 2.30
589 */
590gboolean
591cdk_pixbuf_loader_write_bytes (CdkPixbufLoader *loader,
592 GBytes *buffer,
593 GError **error)
594{
595 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_35
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_35 = 1; _g_boolean_var_35; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return ((0)); } } while
(0);
1
Assuming '__inst' is non-null
→
2
←
Taking false branch
→
3
←
Assuming field 'g_class' is null
→
4
←
Assuming the condition is true
→
5
←
Taking true branch
→
6
←
Taking true branch
→
7
←
Loop condition is false. Exiting loop
→
596
597 g_return_val_if_fail (buffer != NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_36
= 0; if (buffer != ((void*)0)) _g_boolean_var_36 = 1; _g_boolean_var_36
; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", (
(const char*) (__func__)), "buffer != NULL"); return ((0)); }
} while (0);
8
←
Assuming 'buffer' is not equal to null
→
9
←
Taking true branch
→
10
←
Taking true branch
→
11
←
Loop condition is false. Exiting loop
→
598 g_return_val_if_fail (error == NULL || *error == NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_37
= 0; if (error == ((void*)0) || *error == ((void*)0)) _g_boolean_var_37
= 1; _g_boolean_var_37; }), 1))) { } else { g_return_if_fail_warning
("CdkPixbuf", ((const char*) (__func__)), "error == NULL || *error == NULL"
); return ((0)); } } while (0);
12
←
Assuming 'error' is not equal to null
→
13
←
Assuming the condition is true
→
14
←
Taking true branch
→
15
←
Taking true branch
→
16
←
Loop condition is false. Exiting loop
→
599
600 return cdk_pixbuf_loader_write (loader,
17
←
Calling 'cdk_pixbuf_loader_write'
→
601 g_bytes_get_data (buffer, NULL((void*)0)),
602 g_bytes_get_size (buffer),
603 error);
604}
605
606/**
607 * cdk_pixbuf_loader_new:
608 *
609 * Creates a new pixbuf loader object.
610 *
611 * Return value: A newly-created pixbuf loader.
612 **/
613CdkPixbufLoader *
614cdk_pixbuf_loader_new (void)
615{
616 return g_object_new (CDK_TYPE_PIXBUF_LOADER(cdk_pixbuf_loader_get_type ()), NULL((void*)0));
617}
618
619/**
620 * cdk_pixbuf_loader_new_with_type:
621 * @image_type: name of the image format to be loaded with the image
622 * @error: (allow-none): return location for an allocated #GError, or `NULL` to ignore errors
623 *
624 * Creates a new pixbuf loader object that always attempts to parse
625 * image data as if it were an image of type @image_type, instead of
626 * identifying the type automatically.
627 *
628 * This function is useful if you want an error if the image isn't the
629 * expected type; for loading image formats that can't be reliably
630 * identified by looking at the data; or if the user manually forces
631 * a specific type.
632 *
633 * The list of supported image formats depends on what image loaders
634 * are installed, but typically "png", "jpeg", "gif", "tiff" and
635 * "xpm" are among the supported formats. To obtain the full list of
636 * supported image formats, call cdk_pixbuf_format_get_name() on each
637 * of the #CdkPixbufFormat structs returned by cdk_pixbuf_get_formats().
638 *
639 * Return value: A newly-created pixbuf loader.
640 **/
641CdkPixbufLoader *
642cdk_pixbuf_loader_new_with_type (const char *image_type,
643 GError **error)
644{
645 CdkPixbufLoader *retval;
646 GError *tmp;
647 g_return_val_if_fail (error == NULL || *error == NULL, NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_38
= 0; if (error == ((void*)0) || *error == ((void*)0)) _g_boolean_var_38
= 1; _g_boolean_var_38; }), 1))) { } else { g_return_if_fail_warning
("CdkPixbuf", ((const char*) (__func__)), "error == NULL || *error == NULL"
); return (((void*)0)); } } while (0);
648
649 retval = g_object_new (CDK_TYPE_PIXBUF_LOADER(cdk_pixbuf_loader_get_type ()), NULL((void*)0));
650
651 tmp = NULL((void*)0);
652 cdk_pixbuf_loader_load_module (retval, image_type, &tmp);
653 if (tmp != NULL((void*)0))
654 {
655 g_propagate_error (error, tmp);
656 cdk_pixbuf_loader_close (retval, NULL((void*)0));
657 g_object_unref (retval);
658 return NULL((void*)0);
659 }
660
661 return retval;
662}
663
664/**
665 * cdk_pixbuf_loader_new_with_mime_type:
666 * @mime_type: the mime type to be loaded
667 * @error: (allow-none): return location for an allocated #GError, or `NULL` to ignore errors
668 *
669 * Creates a new pixbuf loader object that always attempts to parse
670 * image data as if it were an image of MIME type @mime_type, instead of
671 * identifying the type automatically.
672 *
673 * This function is useful if you want an error if the image isn't the
674 * expected MIME type; for loading image formats that can't be reliably
675 * identified by looking at the data; or if the user manually forces a
676 * specific MIME type.
677 *
678 * The list of supported mime types depends on what image loaders
679 * are installed, but typically "image/png", "image/jpeg", "image/gif",
680 * "image/tiff" and "image/x-xpixmap" are among the supported mime types.
681 * To obtain the full list of supported mime types, call
682 * cdk_pixbuf_format_get_mime_types() on each of the #CdkPixbufFormat
683 * structs returned by cdk_pixbuf_get_formats().
684 *
685 * Return value: A newly-created pixbuf loader.
686 *
687 * Since: 2.4
688 **/
689CdkPixbufLoader *
690cdk_pixbuf_loader_new_with_mime_type (const char *mime_type,
691 GError **error)
692{
693 const char * image_type = NULL((void*)0);
694 char ** mimes;
695
696 CdkPixbufLoader *retval;
697 GError *tmp;
698
699 GSList * formats;
700 CdkPixbufFormat *info;
701 int i, j, length;
702
703 formats = cdk_pixbuf_get_formats ();
704 length = g_slist_length (formats);
705
706 for (i = 0; i < length && image_type == NULL((void*)0); i++) {
707 info = (CdkPixbufFormat *)g_slist_nth_data (formats, i);
708 mimes = info->mime_types;
709
710 for (j = 0; mimes[j] != NULL((void*)0); j++)
711 if (g_ascii_strcasecmp (mimes[j], mime_type) == 0) {
712 image_type = info->name;
713 break;
714 }
715 }
716
717 g_slist_free (formats);
718
719 retval = g_object_new (CDK_TYPE_PIXBUF_LOADER(cdk_pixbuf_loader_get_type ()), NULL((void*)0));
720
721 tmp = NULL((void*)0);
722 cdk_pixbuf_loader_load_module (retval, image_type, &tmp);
723 if (tmp != NULL((void*)0))
724 {
725 g_propagate_error (error, tmp);
726 cdk_pixbuf_loader_close (retval, NULL((void*)0));
727 g_object_unref (retval);
728 return NULL((void*)0);
729 }
730
731 return retval;
732}
733
734CdkPixbufLoader *
735_cdk_pixbuf_loader_new_with_filename (const char *filename)
736{
737 CdkPixbufLoader *retval;
738 CdkPixbufLoaderPrivate *priv;
739
740 retval = g_object_new (CDK_TYPE_PIXBUF_LOADER(cdk_pixbuf_loader_get_type ()), NULL((void*)0));
741 priv = retval->priv;
742 priv->filename = g_strdup (filename)g_strdup_inline (filename);
743
744 return retval;
745}
746
747/**
748 * cdk_pixbuf_loader_get_pixbuf:
749 * @loader: A pixbuf loader.
750 *
751 * Queries the #CdkPixbuf that a pixbuf loader is currently creating.
752 *
753 * In general it only makes sense to call this function after the
754 * [signal@CdkPixbuf.PixbufLoader::area-prepared] signal has been
755 * emitted by the loader; this means that enough data has been read
756 * to know the size of the image that will be allocated.
757 *
758 * If the loader has not received enough data via cdk_pixbuf_loader_write(),
759 * then this function returns `NULL`.
760 *
761 * The returned pixbuf will be the same in all future calls to the loader,
762 * so if you want to keep using it, you should acquire a reference to it.
763 *
764 * Additionally, if the loader is an animation, it will return the "static
765 * image" of the animation (see cdk_pixbuf_animation_get_static_image()).
766 *
767 * Return value: (transfer none) (nullable): The pixbuf that the loader is
768 * creating
769 **/
770CdkPixbuf *
771cdk_pixbuf_loader_get_pixbuf (CdkPixbufLoader *loader)
772{
773 CdkPixbufLoaderPrivate *priv;
774
775 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_39
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_39 = 1; _g_boolean_var_39; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return (((void*)0)); } }
while (0);
776
777 priv = loader->priv;
778
779G_GNUC_BEGIN_IGNORE_DEPRECATIONSclang diagnostic push clang diagnostic ignored "-Wdeprecated-declarations"
780 if (priv->animation)
781 return cdk_pixbuf_animation_get_static_image (priv->animation);
782 else
783 return NULL((void*)0);
784G_GNUC_END_IGNORE_DEPRECATIONSclang diagnostic pop
785}
786
787/**
788 * cdk_pixbuf_loader_get_animation:
789 * @loader: A pixbuf loader
790 *
791 * Queries the #CdkPixbufAnimation that a pixbuf loader is currently creating.
792 *
793 * In general it only makes sense to call this function after the
794 * [signal@CdkPixbuf.PixbufLoader::area-prepared] signal has been emitted by
795 * the loader.
796 *
797 * If the loader doesn't have enough bytes yet, and hasn't emitted the `area-prepared`
798 * signal, this function will return `NULL`.
799 *
800 * Return value: (transfer none) (nullable): The animation that the loader is
801 * currently loading
802 */
803CdkPixbufAnimation *
804cdk_pixbuf_loader_get_animation (CdkPixbufLoader *loader)
805{
806 CdkPixbufLoaderPrivate *priv;
807
808 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_40
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_40 = 1; _g_boolean_var_40; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return (((void*)0)); } }
while (0);
809
810 priv = loader->priv;
811
812 return priv->animation;
813}
814
815/**
816 * cdk_pixbuf_loader_close:
817 * @loader: A pixbuf loader.
818 * @error: (allow-none): return location for a #GError, or `NULL` to ignore errors
819 *
820 * Informs a pixbuf loader that no further writes with
821 * cdk_pixbuf_loader_write() will occur, so that it can free its
822 * internal loading structures.
823 *
824 * This function also tries to parse any data that hasn't yet been parsed;
825 * if the remaining data is partial or corrupt, an error will be returned.
826 *
827 * If `FALSE` is returned, `error` will be set to an error from the
828 * `CDK_PIXBUF_ERROR` or `G_FILE_ERROR` domains.
829 *
830 * If you're just cancelling a load rather than expecting it to be finished,
831 * passing `NULL` for `error` to ignore it is reasonable.
832 *
833 * Remember that this function does not release a reference on the loader, so
834 * you will need to explicitly release any reference you hold.
835 *
836 * Returns: `TRUE` if all image data written so far was successfully
837 * passed out via the update_area signal
838 */
839gboolean
840cdk_pixbuf_loader_close (CdkPixbufLoader *loader,
841 GError **error)
842{
843 CdkPixbufLoaderPrivate *priv;
844 gboolean retval = TRUE(!(0));
845
846 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), TRUE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_41
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_41 = 1; _g_boolean_var_41; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return ((!(0))); } } while
(0);
847 g_return_val_if_fail (error == NULL || *error == NULL, TRUE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_42
= 0; if (error == ((void*)0) || *error == ((void*)0)) _g_boolean_var_42
= 1; _g_boolean_var_42; }), 1))) { } else { g_return_if_fail_warning
("CdkPixbuf", ((const char*) (__func__)), "error == NULL || *error == NULL"
); return ((!(0))); } } while (0);
848
849 priv = loader->priv;
850
851 if (priv->closed)
852 return TRUE(!(0));
853
854 /* We have less than SNIFF_BUFFER_SIZE bytes in the image.
855 * Flush it, and keep going.
856 */
857 if (priv->image_module == NULL((void*)0))
858 {
859 GError *tmp = NULL((void*)0);
860 cdk_pixbuf_loader_load_module (loader, NULL((void*)0), &tmp);
861 if (tmp != NULL((void*)0))
862 {
863 g_propagate_error (error, tmp);
864 retval = FALSE(0);
865 }
866 }
867
868 if (priv->image_module && priv->image_module->stop_load && priv->context)
869 {
870 GError *tmp = NULL((void*)0);
871 if (!priv->image_module->stop_load (priv->context, &tmp) || tmp)
872 {
873 /* don't call cdk_pixbuf_loader_ensure_error()
874 * here, since we might not get an error in the
875 * cdk_pixbuf_get_file_info() case
876 */
877 if (tmp) {
878 if (error && *error == NULL((void*)0))
879 g_propagate_error (error, tmp);
880 else
881 g_error_free (tmp);
882 }
883 retval = FALSE(0);
884 }
885 }
886
887 priv->closed = TRUE(!(0));
888
889 if (priv->needs_scale)
890 {
891
892 g_signal_emit (loader, pixbuf_loader_signals[AREA_PREPARED], 0);
893 g_signal_emit (loader, pixbuf_loader_signals[AREA_UPDATED], 0,
894 0, 0, priv->width, priv->height);
895 }
896
897
898 g_signal_emit (loader, pixbuf_loader_signals[CLOSED], 0);
899
900 return retval;
901}
902
903/**
904 * cdk_pixbuf_loader_get_format:
905 * @loader: A pixbuf loader.
906 *
907 * Obtains the available information about the format of the
908 * currently loading image file.
909 *
910 * Returns: (nullable) (transfer none): A #CdkPixbufFormat
911 *
912 * Since: 2.2
913 */
914CdkPixbufFormat *
915cdk_pixbuf_loader_get_format (CdkPixbufLoader *loader)
916{
917 CdkPixbufLoaderPrivate *priv;
918
919 g_return_val_if_fail (CDK_IS_PIXBUF_LOADER (loader), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_43
= 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance
*) ((loader)); GType __t = ((cdk_pixbuf_loader_get_type ()));
gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class
&& __inst->g_class->g_type == __t) __r = (!(0)
); else __r = g_type_check_instance_is_a (__inst, __t); __r; }
))))) _g_boolean_var_43 = 1; _g_boolean_var_43; }), 1))) { } else
{ g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__
)), "CDK_IS_PIXBUF_LOADER (loader)"); return (((void*)0)); } }
while (0);
920
921 priv = loader->priv;
922
923 if (priv->image_module)
924 return _cdk_pixbuf_get_format (priv->image_module);
925 else
926 return NULL((void*)0);
927}